<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<body>
  <div id="app">
    <p>radio 的内容为： {{ value3 }}</p>
    <input type="radio" id="one" value="1" v-model="value3">
    <label for="one">选项1</label>

    <input type="radio" id="two" value="2" v-model="value3">
    <label for="two">选项2</label>
  </div>
  <script src="lib/vue.js"></script>
  <script>
    var vm = new Vue({
      el: '#app',
      data: {
        value3: ''
      }
    });
  </script>
</body>
</html>